Sandhar, A., & K. Singh, R. (2012). A Simple, Efficient and Eco-Friendly Synthesis of 2,3-Dihydro-1H-1,5-benzodiazepines Mediated by Tannic Acid under Solvent-Free Condition. Asian Journal of Chemistry, 24(12), 5643–5645. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/9892